[Form 4] Atlassian Corp Insider Trading Activity

Rhea-AI Filing Summary

Michael Cannon-Brookes, CEO and 10% owner of Atlassian Corp (TEAM), reported multiple sales of Class A common stock on 09/24/2025 under a Rule 10b5-1 trading plan. The Form 4 shows six dispositions totaling 7,665 shares executed in multiple intraday trades at weighted-average prices ranging from $164.1496 to $169.28 per share. Shares are held indirectly through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust. Following the reported transactions, the beneficial ownership reported for the trustee position declined from 33,595 shares to 30,660 shares. The filing includes standard explanatory notes confirming the 10b5-1 plan adoption date and price ranges for each lot.

Positive

• Disclosure transparency: Filing specifies 10b5-1 plan adoption date and provides weighted-average prices and intraday price ranges for each lot
• Compliance: Form 4 identifies reporting person roles (Director, CEO, 10% owner) and reports transactions promptly, meeting Section 16 requirements

Negative

• Insider selling: Aggregate dispositions of 7,665 Class A shares reduced the trustee-held beneficial ownership from 33,595 to 30,660 shares
• Limited context: Filing lacks company-level context (total outstanding shares or percentage ownership post-sale) to evaluate materiality fully

Insights

Financial Analyst

TL;DR: Director and major owner executed planned sales of 7,665 TEAM shares via a 10b5-1 plan; reported holdings remain material.

The reported transactions are structured disposals under a pre-established Rule 10b5-1 plan adopted February 20, 2025, indicating trades were planned rather than opportunistic. Total shares sold equal 7,665 across six lots with weighted-average prices disclosed for each lot between $164.15 and $169.28. Beneficial ownership held by the trustee decreased to 30,660 shares. From an analytical standpoint, the disclosure is clear and provides per-lot price ranges which aid transparency; the absolute size of the sale should be assessed relative to total outstanding shares for materiality, which is not provided in this filing.

Corporate Governance Expert

TL;DR: Insiders used a documented 10b5-1 plan to sell shares; disclosure meets Section 16 requirements and includes price-range transparency.

The Form 4 properly identifies the reporting person as a director, officer and >10% owner and states the 10b5-1 plan adoption date, satisfying procedural governance expectations. The filing specifies that shares are held indirectly through a trustee and supplies weighted-average prices and intraday ranges for each lot, improving traceability. The filing does not include contextual data such as total company float or percent ownership post-sale, so investors must reference other filings for full governance impact assessment.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Cannon-Brookes Michael

(Last) (First) (Middle)

C/O ATLASSIAN CORPORATION

350 BUSH STREET, FLOOR 13

(Street)

SAN FRANCISCO CA 94104

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Atlassian Corp [ TEAM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	CEO, Co-Founder

3. Date of Earliest Transaction (Month/Day/Year)
09/24/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	09/24/2025		S(1)		4,730	D	$164.1496(2)	33,595	I	See Footnote(3)
Class A Common Stock	09/24/2025		S(1)		600	D	$166.1288(4)	32,995	I	See Footnote(3)
Class A Common Stock	09/24/2025		S(1)		385	D	$168.5774(5)	32,610	I	See Footnote(3)
Class A Common Stock	09/24/2025		S(1)		1,000	D	$165.062(6)	31,610	I	See Footnote(3)
Class A Common Stock	09/24/2025		S(1)		900	D	$167.6393(7)	30,710	I	See Footnote(3)
Class A Common Stock	09/24/2025		S(1)		50	D	$169.28	30,660	I	See Footnote(3)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 20, 2025.

2. This transaction was executed in multiple trades during the day at prices ranging from $163.74 to $164.73. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

3. Shares are held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

4. This transaction was executed in multiple trades during the day at prices ranging from $165.87 to $166.65. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

5. This transaction was executed in multiple trades during the day at prices ranging from $168.15 to $169.11. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

6. This transaction was executed in multiple trades during the day at prices ranging from $164.74 to $165.71. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

7. This transaction was executed in multiple trades during the day at prices ranging from $167.14 to $168.08. The weighted-average price is reported above. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

Remarks:

	/s /Drew Parkes, Attorney-in-Fact for Cannon-Brookes Michael	09/25/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Michael Cannon-Brookes report on Form 4 for TEAM?

He reported six sales totaling 7,665 Class A shares on 09/24/2025 executed under a Rule 10b5-1 trading plan.

How many TEAM shares does Cannon-Brookes beneficially own after the reported transactions?

The filing reports 30,660 shares held indirectly by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust following the sales.

Were the sales part of a pre-established trading plan?

Yes. The transactions were effected pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2025.

What prices were the TEAM shares sold at?

Weighted-average prices by lot ranged from $164.1496 to $169.28, with intraday ranges provided for each executed lot.

Are the sold shares held directly or indirectly?

Indirectly. Shares are held by CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.